JP3456729B2 - Fire information collection method, fire alarm equipment and terminal equipment for fire alarm equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal device in which a plurality of terminal devices such as a fire detector and a repeater are connected to a receiving section, a transmission address is given to each terminal device, and the state has changed, The present invention relates to a fire alarm system and a fire information collecting method for detecting based on a transmission address.

[0002]

2. Description of the Related Art A fire alarm system in which a plurality of terminal devices such as fire detectors are connected to a receiver, an address is given to each terminal device, and a terminal device whose state has changed is detected based on a transmission address. Japanese Patent Laid-Open No. 2-201597 proposes a fire alarm facility for the purpose of promptly grasping a terminal device whose state has changed among the terminal devices.

In this conventional example, the terminal equipment is divided into a plurality of groups, and the timing at which the terminal equipment responds to the receiving section is made different for each group of the terminal equipment, and the terminal equipment whose state has changed responds to the response timing of the group to which it belongs. , The timing at which the terminal device whose state has changed responds to the receiving unit (performs system polling), and then responds to the receiving unit for each terminal device in the group to which the terminal device responding to the receiving unit in this system polling belongs. The terminal device whose state has changed responds to the receiving unit at the response timing assigned to itself (performs point polling), calls the terminal device that responds to the receiving unit at this point polling, and from this terminal device, The receiving unit collects information (selection).

In this way, the operation for obtaining the predetermined information is executed only for the terminal device that has changed the state, and the operation for obtaining the information is not executed for the terminal device that does not change the state. It is possible to grasp the state change of the terminal device in a shorter time than sequentially obtaining the predetermined information.

[0005]

By the way, as the terminal equipment connected to the receiver, there is a transmitter in addition to the fire detector and smoke prevention equipment, and when the transmitter operates, its operation is performed. It is obligatory that a fire alarm is generated within a predetermined time from the start and the response lamp of the operated transmitter is turned on. However, if a large number of terminal devices are installed and the number of terminal devices that have changed in state is large, the fire alarm may not occur within the predetermined time.

That is, for example, when 256 terminal devices are divided into, for example, four groups and polled for each group, and all of the four groups respond (in this case, a state change not directly related to a fire, for example, Failure, test results, control completion, etc.), it is necessary to perform point polling for all of the four groups, and if there are many terminal devices that have changed states within one group, those terminals that have changed states The receiving unit collects predetermined information from each terminal device by selecting all the devices.

When the operated transmitters belong to, for example, the fourth group, information is sequentially collected from the terminal devices (terminal devices whose state has changed) belonging to the first group. There is a problem that it takes a long time to collect information about the transmitter after starting information collection from the terminal devices belonging to the group.

The same applies to fire detectors, gas detectors, etc., which are connected at the same time as the controlled terminal devices, and information is collected from the interlocking terminal devices such as smoke-prevention devices belonging to the first group. There is a problem that it takes a long time to collect information about the fire detector and the gas detector whose state has changed after starting the.

In the present invention, for example, even in a large-scale fire alarm system, when a terminal device of a higher priority type such as a transmitter operates, a terminal device of a higher priority type is
It is an object of the present invention to provide a fire alarm system that allows a receiving unit to quickly grasp fire information.

[0010]

According to the present invention, a plurality of terminal devices are connected to a receiving unit, a transmission address is given to each of the terminal devices, and the terminal device whose state has changed is based on the transmission address. In the fire alarm facility to be detected, the priority order is determined according to the type of each terminal device, and the higher the priority order of the terminal device, the younger the transmission address of the terminal device is set.

[0011]

In the present invention, the higher the priority of the type of terminal device, the younger the transmission address is assigned. Therefore, when the receiving unit collects the information, the terminal devices are called in order from the younger transmission address. Therefore, information such as transmitters can be collected before other terminal devices. Therefore, even in large-scale fire alarm equipment, terminal devices of a higher priority type have a faster reception unit. Can grasp the fire information.

[0012]

FIG. 1 is a block diagram showing an example of a fire receiver RE and an example of equipment connected to the receiver RE in one embodiment of the present invention.

The receiver RE is a microprocessor MPU.
1, RAM 11, 13 to 19, and ROM 31 to 34
, Interfaces 41 to 43, and signal transmission / reception unit TRX
1, an operation unit OP, and a display unit DP.

The RAM 11 is a work area. RAM
An area 13 stores the address g of the group to which the terminal device that has transmitted the response signal belongs, based on the timing of receiving the pulse during the transmitter system polling or the normal system polling. The RAM 14 is an area for storing the in-group address m of the terminal device that has transmitted the response signal based on the timing of receiving the pulse during the point polling.

The RAM 15 is a storage area for storing control contents executed in system polling. RAM
Reference numeral 16 is an area for storing a terminal device number to be controlled in selecting and its control content (for example, test command, fire confirmation command, level stop command). RAM1
Reference numeral 7 is a storage area for status information collected from each terminal device.

The RAM 18 is a storage area for the type ID of the terminal device actually connected, the designed address n ₀ , the transmission address n ₁ , the group address g, and the in-group address m. The RAM 19 is an area for storing the address of the terminal device determined to be in the disconnection state by the disconnection monitoring selecting. The RAM 18
You may use EEPROM as.

The ROM 31 is a storage area for programs and the like relating to the flowcharts shown in FIGS. ROM
Reference numeral 32 denotes a terminal device map table storage area for storing each address of the terminal device such as the transmitter P, the fire detector S, the relay device RP, and the type of the terminal device in the initial setting state. The ROM 33 is a storage area of an interlocking control table that interlocks and controls a controlled device such as the smoke proof device ER based on a fire signal from the terminal device. The ROM 34 is an area for storing data on the correspondence between the terminal device type ID and its priority c. Note that EEPROMs may be used as the ROMs 33 and 34.

The interface 41 is for the operating section OP, the interface 42 is for the display section DP, and the interface 43 is for the signal transmitting / receiving section TRX1.
For use.

Incidentally, the microprocessors MPU1 and RO
The M31, the signal transmitting / receiving unit TRX1, and the RAM 18 use the design address n ₀ given to each terminal device in advance, and from the predetermined terminal device corresponding to the design address n ₀ , the terminal device Is an example of a type collection unit that collects the type information of, and the transmission address determined for the terminal device by using the designed address,
It is also an example of transmission address transmitting means for transmitting to the terminal device. Furthermore, the microprocessor MPU1 and ROM3
1, the RAM 18, and the ROM 34 are an example of a transmission address determining unit that determines the transmission address of the terminal device while increasing or decreasing the priority order according to the collected terminal device type.

FIG. 2 is a block diagram showing a photoelectric smoke detector S used in the above embodiment.

The photoelectric smoke detector S includes a microprocessor MPU2, RAM21 to RAM25, ROM35 to RO.
M37, interfaces 44 to 47, signal transmitter / receiver TRX2, clock generation source CL for timing for smoke detection, light emitting diode L for smoke detection
D, a photodiode PD, a test lamp TL, and a light emitting diode LED as an operation confirmation lamp.

The RAM 21 is a work area and is a RAM.
22 is an area for storing the current state information, which is a RAM
Reference numeral 23 is an area for storing the status information sent to the receiver RE, and RAM 24 is a storage area for various flags.
The RAM 25 is a storage area for the transmission address n ₁ , the group address g, and the in-group address m. In addition, R
An EEPROM may be used as the AM 25.

The ROM 35 is a storage area for programs and the like for controlling the photoelectric smoke detector S as a whole.
Is a storage area for the design address n ₀ of the terminal device itself, the terminal device type ID, and the like. The ROM 37 is a storage area for various discrimination criteria such as fire and failure. ROM3
Instead of 6, a DIP switch or the like may be used.

The interface 44 is for the clock CL, and the interface 45 is a signal transmitting / receiving unit TR.
The interface 46 is for X2, the interface 46 is for the light receiving element PD, and the interface 47 is for the light emitting element TL, the light emitting diode LED, and the like. In addition,
The signal transceiver TRX2 is similar to the signal transceiver TRX1.

Further, the microprocessors MPU2 and RO
The M35, the ROM 36, the interface 45, and the signal transmission / reception unit TRX2 are examples of designed address transmission means for transmitting a design address given in advance to a terminal device to the reception unit in response to a request from the reception unit. Is. Microprocessor MPU2, ROM 35, signal transmission / reception unit TRX
2, the interface 45, and the RAM 25 are examples of a transmission address receiving unit that receives the transmission address determined by the receiving unit based on the designed address together with the transmitted designed address. Further, after receiving the transmission address from the receiving unit, the photoelectric smoke detector S uses the transmission address as a self-address instead of the designed address when communicating with the receiving unit.

FIG. 3 is a block diagram showing a transmitter P used in the above embodiment.

The transmitter P is a microprocessor MPU.
3, RAM21a to RAM25a, ROM35a, RO
It has an M36a, interfaces 45a, 48 and 49, a signal transmission / reception unit TRX3, a switch SW of a push button type or the like to be operated in case of fire, and a light emitting diode LED as a response lamp.

The ROM 35a is a storage area for programs and the like for controlling the entire transmitter P. The ROM 36a is a storage area for the designed self address n ₀ of the transmitter P, type, and the like. A dip switch or the like may be used instead of the ROM 36a.

The RAM 21a is a work area, and RA
M22a is an area for storing current state information, and R
The AM 23a is an area for storing the status information sent to the receiver RE. The RAM 24a is a storage area for various flags.

The RAM 25a is a storage area for the transmission address n ₁ , the group number g of the transmitter P, and the number m in the group. The signal transceiver TRX3 is a signal transceiver TRX.
The same as 1. The RAM 25 is EEP
ROM may be used.

Further, the microprocessor MPU3 and RO
The M35a, the ROM 36a, the interface 45a, and the signal transmission / reception unit TRX3 are examples of designed address transmission means for transmitting a design address given in advance to the terminal device to the reception unit in response to a request from the reception unit. Is. The microprocessor MPU3, the ROM 35a, the signal transmitting / receiving unit TRX3, the interface 45a, and the RAM 25a are examples of transmission address receiving means for receiving the transmission address determined by the receiving unit based on the design address together with the transmitted design address. is there. In addition, transmitter P
After receiving the transmission address from the reception unit, the transmission address is used as the self-address instead of the designed address when communicating with the reception unit.

FIG. 4 shows the fire receiver R in the above embodiment.
7 is a flowchart showing a schematic operation of E.

First, initial setting is performed (S1), the type ID is collected from each terminal device using the designed address n ₀ , and the transmission address n ₁ is collected according to the priority of the collected type ID. Is set (S2).

After that, system polling is performed (S
3). Here, in system polling, the terminal devices are preliminarily divided into a plurality of groups and the terminal devices whose states have changed are not specified, but only the presence or absence of terminal devices whose states have changed is checked for each group. This is polling, that is, the timing of responding to the receiver RE is made different for each group of terminal devices, and the terminal device whose state has changed receives the response timing when the terminal device whose state has changed is assigned to the group to which it belongs. Polling in response to the machine RE (eg, by sending a pulse).

When there is a response from the terminal device to the system polling (S4), point polling is performed for the group that has responded (S5). Here, the point polling is polling for identifying a terminal device that has responded to the system polling (that is, polling for identifying a terminal device that has undergone a state change). The receiver RE calls, and the terminal device in the group is assigned a different timing to respond to the receiver RE (for example, a different timing to respond by sending a pulse), and the terminal device whose state has changed is assigned to itself. Receiver R at the timing of response to the receiver RE
Polling in response to E (eg, by sending a pulse).

When the terminal device responds to the point polling (S6), the terminal device that responds is selected (S7). Here, in selecting, when a terminal device responds to the receiver RE in point polling, the receiver RE individually calls the terminal device that responds in point polling, and the receiver RE collects specific information (for example, a code. (Collected by signal) or the receiver RE specifies and controls the terminal device.

Then, when there is a control interrupt, control interrupt processing is performed (S8, S9), and the process returns to system polling (S3). On the other hand, when there is no response from the system polling (S4), disconnection discrimination selecting is performed (S10).

FIG. 5 shows the fire receiver R in the above embodiment.
9 is a flowchart showing a specific example of transmission address setting (S2) in the operation E.

First, using the designed address n ₀ given to each terminal device at the time of designing, the type ID is collected from each terminal device and stored in the RAM 18. That is, the designed address n ₀ is initialized to 0 (S21), and the designed address n ₀ and the type ID of the terminal device are transmitted from the terminal device whose designed address n ₀ is “0”. The command SAD (n) / CM (i) is sent to the signal line L1 (S22), and from the terminal device whose designed address n ₀ is “0”, the designed address n ₀ and terminal device type ID
When is received (S23), the received design address n ₀ and the terminal device type ID are stored in the RAM 18 (S24), and the design address n ₀ is incremented by 1 (S26). Address n ₀ of the maximum value N
The above-mentioned operations are repeated in the same manner until (S25).

Next, the designed address n ₀ is initialized to 0 again, the priority function k and the transmission address n ₁ are initialized to 0 (S31), and the RAM 18 corresponds to the designed address n ₀ . The type ID of the terminal device is read (S32), the priority c of the type ID of the terminal device is read from the ROM 34 (S33), and the design address is read according to the priority c of the type ID of the read terminal device. The transmission address n ₁ (new address) is given to the terminal device to which n ₀ is given.

That is, if the read priority c is the same as the priority function k (0 in this case) (S
34), and stores a new transmission address n ₁ in the RAM 18 corresponding to the designed address n ₀ at that time (S
35) and increments the transmission address n ₁ by 1 (S3
6) If the read priority c is different from the priority function k (S34), the new transmission address n _{1 is set} to R.
The value is not stored in the AM 18, the transmission address n ₁ is not incremented by 1, the design address n ₀ is incremented by 1 (S38), and the above operation (S32-) is performed until the design address n ₀ reaches its maximum value N. S36 and S38) are executed (S37).

Then, the function k of the priority order is increased to 1 (S42), and the designed address n ₀ is returned to 0 (S4).
3), until the address n ₀ of the design becomes the maximum value N repeat the above operation (S32 to S38) (S41), changes the function k of priority 2 (S42), the address of the design n ₀ Is reset to 0 (S43), and the designed address n
_The above operation is performed until ₀ reaches the maximum value N (S32 to S3
8) is repeated (S41), and so on until the function k of the priority order reaches its maximum value K (S32).
~ S43) is repeated (S41).

Incidentally, before sending a transmission address n ₁ to the terminal device, if greater than the transmission address n ₁ is a predetermined address A need to be delivered (S44), as addressing can not cope, set Display defects (S
45).

By the above operation, the designed address n ₀
To the transmission address n ₁ ends.

Next, using the designed address n ₀ ,
The obtained transmission address n ₁ is sent to each terminal device.
First, the designed address n ₀ is initialized to 0 (S5
1), a command SAD (n) / CM that sets the terminal device whose designed address is n ₀ to the address settable state
(S), a command SAD (n) · n ₁ for setting the transmission address n ₁ in the terminal device whose designed address is n ₀
To the signal line L1 (S52, S53), the design address n ₀ is incremented by 1 (S55), and the design address and the transmission address are changed until the design address n ₀ reaches its maximum value N. The operation (S52, S53, S55) of sending the combination of (3) to the terminal device is repeated (S54).

In accordance with the above operation, each terminal device receives its own new transmission address, and thereafter, the received transmission address is used to communicate with the receiver RE without using the designed address. Communicate with each other.

FIG. 6 is an explanatory diagram of the above embodiment, and is a diagram showing the relationship between the terminal device, its designed address, and the priority order.

In the example shown in FIG. 6, a three-story building has four
It is divided into two warning areas (1st floor, 2nd floor, 3rd floor, stairs),
Designed addresses are sequentially assigned to the terminal devices in each warning area. This design address does not need to consider the priority of the terminal device at all, and is an address uniquely assigned in order from the lower floor. As long as this design address does not overlap, it may be assigned in order from the middle floor or at random.

Also, the priority c is determined in advance according to the type of the terminal device, the transmitter has the first priority, the smoke detector, the heat detector and other fire detectors have the second priority, and the fire detector has the second priority. The fire door, which is one of the smoke exhaust devices, has the third priority, and the district bell has the fourth priority. The correspondence table between the type of terminal device and the priority order c is stored in advance in the ROM 34 of the receiver RE.

There is an office and a kitchen on the first floor of this building, an office divided into two on the second floor, a conference room and a waiting room on the third floor, and the office is photoelectric type. A constant temperature type heat sensor is installed in the sensor and kitchen, and a differential type heat sensor is installed in the conference room. A photoelectric smoke detector is installed at the top of the stairs, and a fire door on each floor facing the stairs is installed as a smoke-proof device. The district bell and the transmitter P are provided for each floor, and the district bell rings individually.

When the designed address n ₀ is converted into the transmission address n ₁ in the example shown in FIG. 6 according to the above embodiment, the relationship between the terminal device and its designed address n ₀ and its transmission address n ₁ is , As shown in FIG. In this case, the receiver RE collects the predetermined information from the terminal devices by individually selecting all the terminal devices. In this way, even if the receiver RE selects all the terminal devices individually, as described above,
Since the information is collected in order from the transmitter P or the like having a high priority, the receiver RE can grasp the fire information as quickly as the terminal device of the type having a high priority even in a large-scale fire alarm facility.

In the example shown in FIG. 6, when the designed address n ₀ is converted into the transmission address n ₁ and system polling and point polling are performed according to the above embodiment, the terminal device and its transmission address n ₁ The relationship between the group address g and the in-group address m is as shown in FIG.

In this case, when the receiving unit such as the receiver RE collects the predetermined information from the terminal device, the predetermined information is collected from the terminal device by system polling, point polling and selecting. Alternatively, system polling may be performed, and predetermined information may be collected from the terminal devices by selecting all the terminal devices belonging to the group that responded by the system polling. The predetermined information may be collected from the terminal device by performing selection on the terminal device that responded by the point polling.

In the above embodiment, the terminal device of the higher priority type is given a younger transmission address, so that when the receiver RE collects information, the terminal device having a younger transmission address is sequentially arranged. Therefore, information from a terminal device that is called and therefore has a high priority, such as a transmitter,
It is possible to collect the fire information before the other terminal devices. Therefore, even in a large-scale fire alarm facility, the receiver RE can grasp the fire information as quickly as the terminal device of the type having a higher priority.

Further, according to the above-mentioned embodiment, the receiver RE collects the type information of the terminal device based on the designed address given to the terminal device in advance, and according to the collected terminal device type. In order of priority, the transmission address of the terminal device is determined while increasing it, and the determined transmission address is made to correspond to the design address and sent to the terminal device. Therefore, it is not necessary to assign a transmission address in consideration of the above, and therefore the address setting work of the terminal device at the design stage is easy.

In the above embodiment, the priority order is set according to the type of each terminal device, and the terminal device having a higher priority order is set to have a younger transmission address (that is, The transmission address of the terminal device is set to be gradually increased in the determined priority order. However, instead of this, the transmission address may be set to be gradually decreased in the determined priority order.
In this way, when the transmission addresses are set while being gradually decreased in the determined priority order, the receiving unit needs to sequentially collect the predetermined information from the terminal device while gradually decreasing the transmission addresses.

Further, in the above embodiment, the microprocessor MPU1, the ROM 31, the RAM 18, and the ROM 34 determine the priority order according to the collected terminal device type, and the terminal is increased or decreased in the order of the determined priority order. The transmission address of the device is determined, and in this case, the transmission address of the terminal device is determined by adding the design address. In other words, the transmission address of the terminal device is determined in the order of the design address. Although the address is determined, the transmission address of the terminal device may be determined without considering the designed address.

Further, in the above-mentioned embodiment, the photoelectric smoke detector S or the transmitter P sends the designed address given in advance to the terminal device to the receiving unit in response to the request from the receiving unit. After receiving the transmission address determined by the receiving unit based on the designed address together with the designed address, and after receiving the transmitted address from the receiving unit, when communicating with the receiving unit, instead of the designed address Since the transmission address is used as its own address, at the time of installation of the fire alarm equipment and at a predetermined period thereafter,
For the time being, use the designed address to communicate with the receiving unit, and if the equipment changes after that, setting a new address (setting of the transmission address above) according to the change in the equipment is easy, quick, and reliable. Can be executed.

In this case, when the design address is changed to the transmission address (new address), the receiving unit stores the correspondence between the design address and the transmission address (new address) in the ROM, the RAM, or the like. It suffices to store the data in a storage element, convert the designed address into a transmission address (new address) according to this correspondence, and send it to the terminal device.

[0060]

According to the present invention, even in a large-scale fire alarm system, when a terminal device of a higher priority type such as a transmitter operates, a terminal device of a higher priority type has a higher speed. In addition, the effect that the receiving unit can grasp the fire information is exerted.

[0061]

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a fire receiver RE and an example of a terminal device connected to the receiver RE according to an embodiment of the present invention.

FIG. 2 is a photoelectric smoke detector S used in the above embodiment.
It is a block diagram showing.

FIG. 3 is a block diagram showing a transmitter P used in the above embodiment.

FIG. 4 is a flowchart showing a schematic operation of the fire receiver RE in the above embodiment.

FIG. 5 is a flowchart showing a specific example of transmission address setting (S2) in the operation of the fire alarm receiver RE in the above embodiment.

FIG. 6 is an explanatory diagram of the above-described embodiment, and is a diagram showing a relationship between a terminal device, its designed address, and a priority order.

FIG. 7 is an explanatory diagram in the case where the designed address n ₀ is associated with the transmission address n ₁ according to the above embodiment, and the terminal device and its designed address n ₀ and its is a diagram showing the relationship between the transport address n _1.

FIG. 8 is an explanatory diagram in the case where the designed address n ₀ is associated with the transmission address n ₁ according to the above embodiment, and the terminal device and its designed address n ₀ and its is a diagram showing the relationship between the transport address n ₁ and group address g and intragroup address m.

[Explanation of symbols]

RE ... fire receiver, S ... photoelectric smoke sensor, P ... transmitter, ID ... terminal device type, n ₀ ... address on design, n ₁ ... transmission address, c ... priority, k ... function priority , G ... Group address, m ... Address within group.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G08B 17/00-31/00

Claims (4)

(57) [Claims] 1. A fire alarm facility, wherein a plurality of terminal devices are connected to a receiver, a transmission address is given to each of the terminal devices, and the terminal device whose state has changed is detected based on the transmission address. Type information collecting means for collecting type information of the predetermined terminal device from a predetermined terminal device based on a design address given in advance to the terminal device; priority according to the collected terminal device type Transmission address determining means for determining a transmission address of the terminal device while increasing or decreasing in order of rank; and the predetermined terminal device together with the determined transmission address together with the design address corresponding to the transmission address. A transmission address transmitting means for transmitting to the transmission address;
The fire alarm facility, wherein the receiving unit has terminal device information collecting means for sequentially collecting predetermined information from the terminal device. 2. The device according to claim 1, wherein the terminal device information collecting means performs a system polling means for collecting predetermined information from the terminal device by system polling, point polling and selecting, and responds by the system polling. By means of collecting predetermined information from terminal devices by selecting all terminal devices belonging to the group, or by point polling all terminal devices individually and selecting terminal devices that responded by this point polling Fire alarm equipment, which is means for collecting predetermined information from a terminal device. 3. The fire alarm equipment according to claim 1, wherein the terminal device information collecting means is a device for collecting predetermined information from the terminal devices by individually selecting all the terminal devices. 4. The fire alarm equipment according to claim 1, wherein the transmission address determining means determines the transmission address of the predetermined terminal device by adding the designed address. .